Prolonged Field Care Podcast

In this presentation, we take a deep dive into the 300-year history of mobile surgery supporting land campaigns — from Dominique Larrey’s ambulance volantes through the Letterman system, Arnhem, the Falklands, Mali, and the current Russia-Ukraine war. Drawing on rare surgical memoirs, battle maps, and personal accounts, the discussion extracts the recurring problems that technology has never fully solved: logistics drag, extended timelines, signature management, and the tension between mobility and capability.
We then turn to the horizon. In an era of mosaic warfare and large-scale combat operations, medicine cannot remain a drag factor. The talk explores contractile and expandable surgical systems, single-surgeon reach, austere armored resuscitation teams, underground and containerized facilities, emissions control, and how we expand the surgical workforce under resource constraints while still doing the most for the most.
Whether you are preparing for LSCO, SOF support, or prolonged field care in denied environments, the hard-won lessons of the past remain the best preparation for the fight ahead.
Key Takeaways
Mobile surgery is not new — Larrey, Guthrie, Pirogov, and Letterman already solved (and documented) many of the mobility and triage problems we still face.
Institutional memory fades fast. Rare single-edition war surgery texts must be digitized and pushed into training pipelines before the lessons are watered down.
In mosaic warfare the linear Role 1–4 model is insufficient. Surgical capability must become a mesh: dispersed, diggable, low-signature, and able to expand or contract with the fight.
Big fixed facilities and large tented Role 2/3s become high-value targets. Single-surgeon or small polyvalent teams, pre-dug containers, underground sites, and armored austere teams offer greater survivability and shorter wounding-to-surgery times.
Blood, sterilizing capacity, anesthetic volume, and outflow remain the greatest logistic constraints. Expectation management and robust triage (including expectant) will be non-negotiable.
Capability can be extended by bringing registrars, ODPs/CRNA-equivalents, and well-trained medics further forward earlier — but this requires deliberate peacetime training and wartime derogations.
Command and control, decision-making loops, and the ability to cache or hand off casualties must be rehearsed now, not improvised under fire.
Chapters
00:00 – Introduction & Scope: 300 Years of Mobile Surgery02:00 – Institutional Memory, Rare Texts & the Risk of Forgetting05:25 – Dominique Larrey & the Birth of the Ambulance Volante07:00 – Guthrie, Napoleonic Lessons & Early British Mobility07:40 – Crimea, Pirogov’s Forward Teams & Brunel’s Prefabs08:15 – The Letterman System & the American Civil War08:50 – World War I: Auto-Chir, Operating Cars & the Limits of Static Warfare11:15 – Spanish Civil War: Civilian Surgeons & Fluid Fronts12:00 – World War II Desert, SAS & the Reality of Extreme Isolation13:40 – Arnhem, Market Garden & Improvised Care Under Fire16:00 – Varsity, Chindits & the Logistics Drag of Jungle Warfare18:00 – Falklands, Gulf War, Mali & Modern Mobility Challenges19:50 – Ukraine: Extended Timelines, Targeting of Medical Assets & Aged Injuries20:50 – Horizon Scan: Mosaic Warfare & Contractile Surgical Systems22:00 – Dispersion, Digging In, Underground Facilities & Signature Management24:00 – Capability Extenders, Team Composition & Decision-Making Under Constraint25:30 – Logistics, Blood, Sterilization & the Middle Ground Between Fixed and Tiny Teams27:00 – Closing Thoughts & Questions
Follow @prolonged_field_care and visit prolongedfieldcare.org for more austere and prolonged field care education.

In this episode of the Prolonged Field Care Podcast, Dennis sits down with Alex, CEO of Shannon Mechanics, a Ukrainian company that has produced more than 8,000 drag stretchers and over 330,000 immobilization splints for the front line since the full-scale invasion.
Alex shares the raw story of how the company started with scrap materials and construction-store aluminum during the early chaos of 2022, scaled production while operating physically underground with independent power and battery-powered equipment, and refined products based on real soldier feedback. They discuss the BM splint (a more rigid, radiolucent alternative designed for Ukrainian conditions), the philosophy behind their rollable plastic drag stretcher optimized for one-person extraction under drone threat and complex terrain, quality control under resource constraints, the transition from pure volunteering to a sustainable business, and the deeper questions of dignity in life and death, PTSD, and long-term rehabilitation.
This is practical, unfiltered insight into how medical manufacturing adapts when supply lines collapse, borders close, and every piece of gear has to work in the worst conditions imaginable.

Key Takeaways
Medical equipment designed for true one-person drag evacuation becomes critical when vehicles and multi-person teams are unavailable under drone threat and destroyed terrain.
Starting with simple, locally available materials (construction-store aluminum for splints) allowed rapid production when imports were impossible.
Operating underground with independent power, internet, and battery-powered tools enables continuity during blackouts and air raids.
Visual quality control plus a “donation pile” for minor cosmetic defects keeps functional gear moving to the front while supporting community needs.
Sustainable production requires paying people and covering costs—pure volunteering burns out and collapses.
Feedback loops from soldiers drive continuous product improvement (rigidity, size options, packing for NATO pouches).
Beyond the gear itself, the conversation highlights the need for dignity in recovery of the wounded and the fallen, plus long-term psychological and prosthetic support for survivors.

Chapters
00:00 – Introduction & Disclaimer
00:26 – Meet Alex: CEO of Shannon Mechanics
01:15 – Company origins: Revolution of Dignity to 2014–2022
02:41 – Humble beginnings, scrap materials, and the siege of Kyiv
04:55 – Building supply chains under closed borders
07:18 – Starting with BM splints, then the Utah/drag stretcher
08:06 – Material challenges and community-driven solutions
11:20 – Learning the craft, teaching production, and favoring people over full automation
13:26 – From volunteering to a sustainable business model
16:21 – Quality control process for splints
23:20 – Introducing the drag stretcher design philosophy
24:02 – Why rigid NATO litters fail in modern Ukrainian conditions
25:01 – One-person drag, complex terrain, drones, and secondary injury prevention
28:15 – Limitations (sniper fire) and real-world evacuation stories (8 km drag, quad bike integration)
30:32 – Hypothermia protection, mud/snow durability, and recovery of the fallen
34:40 – PTSD as generational trauma and the need for long-term support
40:00 – Managing supply chain volatility and building Ukrainian supplier capacity
42:39 – What has allowed the company to succeed during war
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In this episode of the Prolonged Field Care Podcast, Dennis sits down with J.R. Pickett — unpack the controversial and high-stakes topic of what used to be called excited delirium.
They dig into the history of the syndrome (Bell’s mania, acute exhaustive mania, agitated delirium), why major organizations including ACEP, ACMT, and the National Association of Medical Examiners have rejected the term, and the preferred modern language: hyperactive delirium with severe agitation. The conversation covers real-world presentation, the physiologic cascade that can lead to sudden cardiovascular collapse, the critical differences between a contained hospital environment and the uncontrolled street or austere setting, and the hard lessons from the Elijah McClain case.
J.R. walks through practical decision-making for EMS and tactical medics: when de-escalation is possible, when sedation becomes necessary, why intramuscular ketamine remains the most forgiving and rapid option for the violently agitated patient, how to prepare for the predictable risks (brief apnea, loss of airway protection, metabolic derangement), and why continuous medical eyes-on monitoring after sedation is non-negotiable. They also address the dangerous intersection of law enforcement and medical care, the myth of “if they can talk they can breathe,” and the growing criminalization of medical decision-making that threatens providers’ willingness to engage.

Key Takeaways
The condition is a true medical emergency with historically high mortality, even without restraint or intervention.
Engagement ability is a practical field litmus test: if the patient cannot be redirected or answer basic questions, rapid intervention is usually required.
Ketamine’s wide therapeutic index and rapid IM onset make it the preferred agent for violent agitation when IV access is impossible — but it is not risk-free.
Sedation is a procedure. Have airway equipment, monitors, and a clear team plan ready before the drug is given. Continuous medical provider eyes-on is mandatory in the early phase.
“If you can talk, you can breathe” is dangerous teaching. Treat complaints of inability to breathe seriously.
Noble intent + thorough preparation is the best defense against both bad outcomes and the growing criminalization of medical care.

Chapters
02:45 – What is (or was) excited delirium? History, physiology, and why the term is being abandoned
09:30 – Real-world presentation vs. “just being a jerk” and the challenge of the uncontrolled environment
15:20 – Elijah McClain case and the broader controversy around restraint, force, and medical justification
21:00 – Causes of severe agitation and the difficulty of sorting them in the field
26:45 – Clinical clues and the “can I engage?” litmus test
32:10 – The physiology of sudden collapse: acidosis, rhabdomyolysis, and the danger of sudden quiet
37:40 – “I can’t breathe” and why that teaching is hazardous
45:50 – Ketamine deep dive: dosing, therapeutic index, risks, and why it is still the safest rapid option
55:20 – Comparison with benzodiazepines and antipsychotics; timing matters
01:01:00 – Treating sedation like a procedure: airway readiness, monitoring, team roles, and continuous eyes-on
01:10:30 – Police vs. medical roles, the myth of walking away, and the duty to act
01:18:00 – Criminalization of medical care and final thoughts on honorable intent
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In this raw and eye-opening episode of the PFC Podcast, Dennis sits down with Jason, a general surgeon who completed nine combat deployments (seven in special operations) and has since operated in caves, dirt-floored schoolhouses, living rooms, and active conflict zones across multiple countries with nothing but a small team and minimal kit.
Jason breaks down the hard truths of “guerrilla surgery” — what actually happens when you strip away the three-truck, 21-person forward surgical team and force a four-person element to provide meaningful surgical care far forward in denied or unconventional environments. He explains why the biggest barrier to austere surgery is often the surgeon’s own mindset, how he went from carrying 60 instruments down to the 10 he actually uses, and the critical (and often misunderstood) difference between damage control surgery and definitive field care when follow-on care is not guaranteed.
Listeners will hear real-world lessons on space requirements, sterility compromises, anesthesia options with almost nothing, and the courage required to operate when the alternative is certain death for the patient.
Key Takeaways:
Reduced inventory forces reduced capability — fighting this reality gets people killed
The surgeon is frequently the biggest obstacle to effective austere operations
How to ruthlessly pare down to the 10 instruments you will actually use
Why damage control surgery can be the wrong choice when you may never see the patient again
The 10 × 8 × 7 foot rule for creating a functional austere operating space
How to make sterility decisions when someone is bleeding to death in front of you
Anesthesia progression from local blocks to ketamine, spinal, and general in denied environments
The mindset shift required to move from “we can do everything” to “what can we actually do here that adds value?”

Whether you’re a military surgeon, forward surgical team member, special operations medic, or anyone serious about prolonged field care and austere medicine, this episode will fundamentally change how you think about surgical capability in resource-poor, high-threat environments.
Connect with Jason’s work through the Four Winds Professional Guild at ⁠www.4wguild.org⁠.
Chapters
00:00 – Podcast Introduction & Guest Welcome
00:55 – Jason’s Background: 9 Combat Deployments (7 in Special Operations) & Global Missions
02:22 – The Ghost Team Experiment: Why “We Can Do Everything with Less” Is Dangerous
04:23 – Why Surgeons Themselves Often Block Effective Austere Operations
05:43 – Military Training vs. The Harsh Realities of Austere & Unconventional Warfare
08:04 – Paring Down from 60 Instruments to the 10 You Actually Use
09:03 – The Hard Realities of War Zones: Doing No Harm When the System Doesn’t Exist
11:10 – Small Team Dynamics: You Are the Pre-Op, OR, and PACU
13:35 – Damage Control Surgery vs. Definitive Field Care in Denied Environments
16:42 – What Actually Drives Your Kit: Terrain, Evacuation Times, Aftercare & Patient Population
21:08 – Longer Evacuation Times Change Everything About Your Surgical Approach
22:17 – The Critical Decision: Quick & Dirty vs. All-In Definitive Care
27:02 – The 10 × 8 × 7 Foot Rule: Minimum Space Requirements for Austere Surgery
29:28 – Sterility in Austere Environments: Bare Minimum Standards That Actually Matter
32:30 – When Non-Sterile Technique Is the Only Way to Keep Someone Alive
35:43 – Anesthesia Options When You Have Almost Nothing (Local → Ketamine → Spinal → General)
39:01 – Advice to New Austere Surgeons: Courage, Basic Principles & Trial & Error

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In this episode of the Prolonged Field Care Podcast, Dennis sits down with Alex to dissect a controversial claim that calcium is useless for hyperkalemia during cardiac arrest. What started as a social media post that "set his hair on fire" led to a full investigation: reading the primary paper, digging into its references, and uncovering how conclusions can get twisted.
They break down the study’s methods, limitations, and real applicability to austere, prehospital, and operational medicine — including crush injuries, medical CPR on base, and why black-and-white social media takes often miss the gray reality of medicine. Topics include cardiac membrane stabilization, physiologic mechanisms, JTS CPGs, confounders in resuscitation research, and why you should always chase the references.
Key Takeaways:
Calcium doesn’t lower potassium — it stabilizes the cardiac membrane and buys critical time.
The referenced paper has significant limitations (small hyperkalemia subgroup, very sick patients, poor outcomes overall) and does not support abandoning calcium.
Medicine is gray: knowledge translation lags, and even published papers can overreach conclusions.
In austere/prolonged field care, if your teammate is in arrest and it’s safe to act, calcium + bicarb is still worth using while addressing reversible causes (Hs & Ts).
Always evaluate studies with PICO, look for confounders, and consider functional outcomes (e.g., Modified Rankin Scale) over simple survival.
Peak T-waves are unreliable — treat based on mechanism of injury and clinical suspicion.
Whether you’re a tactical medic, flight medic, or austere provider, this episode sharpens your critical thinking and reinforces why calcium remains in the toolkit.
Resources & Links:
JTS Clinical Practice Guidelines on Hyperkalemia
Prolonged Field Care website: www.prolongedfieldcare.org
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Episode Chapters
00:00 – Intro & Welcome
00:45 – The Social Media Post That Started It: “Calcium is Useless”
02:18 – Knowledge Translation Lag & Gray Areas in Medicine
06:05 – Why Dennis Dug Into the References
08:21 – Does Medical CPR Apply to Operational Medicine?
11:06 – PICO Breakdown of the Study (Taiwan Retrospective Review)
15:50 – Better Outcomes Than Just “Dead vs Alive” – Modified Rankin Scale
17:39 – Study Results: ROSC, Survival, and Neurologic Outcomes
21:08 – Physiology: How Calcium & Sodium Bicarb Actually Work in Hyperkalemia
28:52 – Field Recognition of Hyperkalemia (Crush Injury, Relative Bradycardia)
31:58 – JTS CPGs, Treatment Thresholds (K+ >6.5), and Why Labs Aren’t Everything
35:40 – Very High Potassium Levels & Prognosis in Prolonged Arrest
39:20 – Final Thoughts: Don’t Abandon Calcium Based on Weak Evidence
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